Gas burner for singeing any kind of spun



Sept. 30, 1930. L.. G. PETlTALoT GAS BURNER FOR SINGEING ANY KIND OF SPUN Filed April 22, 1929 2 Sheets-Sheet -l Inventor:

L mx R nn Sept. 30, 1930. l 1 G. PETITALOT GAS BURNER FOR SINGEING- ANY KIND OF SPUN Filed April 22. 1929 2 Sheets-Sheet 2 v Inventor: Louis @innert Rbtlt vf" V Attorney:

Patented Sept. 30, 1930 NITE 'rs LoUIs GILBERT rnrI'rALor, or*` PARIS, FRANCE GAS BURNER non sINenING ANY KINnor sPUN Application iled April 2v2, 1929, Serial No.

The singeing chamber is formed in lireproof block, through the longitudinal aXis j of which the thread to be singed is passed.

rlwo Haines produced-by two burner rowsf enter said chamber through two diametrically opposed slots,` said flames being directed in opposite directions and meeting on the passage of the-thread.

The ireproof pieces heated to incandescence reiiect and lconcentrate their heat upon the threadthus completing the direct action of the burner rows in order to determine atotal embracement of the thread by the llames and securing uniformi singeing on all faces thereof. Y

The use of i'sulating material will minimize the loss of heat, so that the heat at the centre of the chamber will be considerably increased and the flames will not be subject to the variations of the outer air.

The shocks and frictions produced by the meeting of the two ignited jets of gaseous mixture under pressure will clean the singeing chamber as well as the perforations of the burners which have tendency of becoming obstructed.

In the accompanying drawings I have illustrated three preferred embodiments of my invention.

Fig. l shows half an elevation and half a longitudinal section of a iirst embodiment of my invention.

Fig. 2 is a cross section thereof.

Fig. 3 is an elevation of a second embodi- 'fment of my invention and Fig. 4 is a cross section thereof on line A-B of Fig. 3.

Fig. 5 is 'an elevation showing a modified form of device, and

Fig. 6 is a cross section thereof on line C-D of Fig. 5.

Referring now more particularly to Figs. 1 and 2, the improved burner primarily comprises a block of tireproof material composed of three parts l, 2 and 3, which are recessed 357,204, and in, France February 28, 192s.

so as to form. a cylindrical reflecting and j singeing chamber 4.

Said chamber 4 is constructed to receive the ignited jets of gaseous mixture through two longitudinal, diametrically opposed slots 5 and t3, providedin its walls and located in the same plane.

Provided in the wall of thesingeing chamber is another longitudinal slotr 7, located in a plane right angles to the plane of the slots 45 Vand 6 and serving to insert the thread to be singed. Said slot 7 enables the operator to seethe inner operation of the device, adjust ythe combustion during the opera-tion and verify the instantaneous -cleaning of the inside of the burner at any moment, whereby such cleaning may be completed if necessary.

Arranged on opposite sides of the singeing chamber 4 in the `same plane and parallel thereto are two. burner rows Sand 9 perforated on a generating line. In order to secure uniform pressure in both rows, the latter are supplied by a common main 12 on which a single ladjusting cock or valve is arranged. l y I j Y The two sets offperforations 10 and 1l are arranged in front-.of eachl other in such a way, that thejetsy of ignited gaseous mixture will enter the chamber 4 through the two slots L5 and G above mentioned. said jets meeting along the anis of the chamber 4.

Owing to the cylindrical shape ofthe in- Y side of the chamber4 and the nature thereof,vthe walls of said chamber `.will reflect the flamestowards the centre of the chamber 85 through which the thread to be singed is moved. v

The textile material will be singed uniformly on all faces owing to the fact that it will be completely embraced bythe direct flames as well as by the reflected flames.

A' system of rotary or sliding shutters (not shown in the drawings) is provided for closingcertain ofthe perforatio'ns 10 and 11 of the burner rows 8 and l9 for the'pu'rpose of'se- 95 curing the best adjusting for each kind andv size of thlread together with thefadjusting of the `as 'supply' cock or valve. v

Althoughithedevice above described. enables threads 'of standard sizes to besatis- 10C factorily singed, I may obtain better results in certain cases according to the nature or thickness of the thread to be singed, by using more than two gas burner rows for eac-h singeing chamber, whereby the flames will be better distributed around the thread.

It will be obvious that a plurality of singeing chambers arranged side by side or otherwise, may be provided, each chamber being surrounded by a plurality of burner rows. The latter may supply one or several chambers, the perforations of the burner rows being arranged on adequately selectedy generating lines. j l

The perforations` through which the gaseous mixture is discharged maybe shaped in any desired way and even replaced by suitable slots, if required. j

In Figs. 3 and 4 I have illustrated such a` modification of the device, comprising three perforated burner rows, arranged in trefoil relation around the singeing chamber through which the thread is moved.

Referring to Figs. 3 and 4, A is the block of ireproof material, provided with three holes for the reception of three burner rows b1 b2 b3. VCis the central singeing chamber, through which the thread is moved centrally. The wall of said chamber is provided with three slots for the passage of the flames and a fourth Vslot for the insertion of the thread.

A further modification of the device is illustrated in Figs. 5 and 6, wherein two singeing chambers d1 and d2 are provided. each of said chambers being surrounded by three burner rows b4 b5 bg and b6 b7 bs respectively, the common burner row 8 being perforated on two opposite generating lines in order to enable same to supply jets of ignited gaseous mixture to each singeing chamber d1 and d2'.

It will be obvious that the arrangements described by way of example are not limitative and may be modified in manyV respects without departing from the scope of my invention.

For instance the devices shown in Figs. 3, 4. 5 and 6 may also be provided with rotary or sliding shutters for securing the best adjustment together with the adjustment of mixture supply valve.

The fireproof block shown in the drawings as being formed of a single piece and adapted to be removed by hand without the aid of any tool, may also be formed of a plurality of pieces.

Having now fully described my said in-l` vention, what I claim and desire to secure by Letters Patent, is: i

1. A gas burner for singeing spun of any kind, comprising in combination a block of Iireproof material, a plurality of cylindrical singeing chambers formed in said block, a longitudinal slot in the wall ofv each chamber for the insertion of the threads to be treated therein, a plurality of other longitudinal slots in the wall of each chamber, and gas burner rows arranged outside and in front of said last named slots, certain gas burner rows being arranged to be common to two chambers, substantially as set forth.

2. A gas burner for singeing spun of any kind, comprising in combination a block of fireproof material, cylindrical singein chambers formed in said block, a longitudinal slot in the wall of each chamber for the insertion of the thread to be treated, a number of other longitudinal slots in the wall of each chamber, cylindrical holes formed in said block parallel to and symmetrically around each chamber, and a gas burner row in each cylindrical hole and having its flames directed through the last named slots into the corresponding singeing chamber, substantially as set forth.

3. A gas spun singeing device which consists of a block of refractory material, a plurality of parallel cylindrical singeing chambers in said refractory block, heat reflecting internal walls in said singeing chambers, a plurality of chambers in said block parallel to said singcing chambers and located between said singeing chambers and radially to each singeing chamber, longitudinal slots connecting each singeing chamber to the radially located chambers, a gas burner in each radially located chamber.` directing gas jets through said slots in the axis of the respective central singeing chamber or chambers,- and a` longitudinal slot in each singeing chamber leading outside said block.

LOUIS GILBERT PETITALOT. 

